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Finding the Fourth Proportional to 18,702.92, 28,027.64 and 13,733.58

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Solution

The fourth proportional to 18,702.92, 28,027.64 and 13,733.58 is: 20,580.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.92 : 28,027.64 = 13,733.58 : x
  2. Step 2: Convert to fraction form
    18,702.92/28,027.64 = 13,733.58/x
  3. Step 3: Cross multiply
    18,702.92x = 28,027.64 × 13,733.58
  4. Step 4: Simplify right side
    18,702.92x = 384,919,836.15
  5. Step 5: Solve for x
    x = 384,919,836.15/18,702.92
  6. Step 6: Final answer
    x = 20,580.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.